PST3S-H4 Star Tracker
TY-Space Technology
The PST3S-H4 is a compact, low-power refractive-optics star tracker designed for high-pointing-accuracy spacecraft attitude determination, with strong dynamic performance and radiation resistance.
Typed specifications70 values
Discloses 10 of 12 fields engineers filter by in this category (category median 8).
- Accuracy, cross-boresight
- 5 arcsec @0.1°/s Pointing · datasheet p.1 8 arcsec @0.5°/s Pointing | 15 arcsec @1.0°/s Pointing | 5 arcsec 0.1°/s Pointing | 5 arcsec 0.1°/s, pointing, 3 sigma +5
- Mass
- 95 g nom. · datasheet p.2 95 g | 95 g device weight 95±10g
- Accuracy, about boresight (roll)
- 50 arcsec datasheet p.1 50 arcsec @0.1°/s | 60 arcsec @0.5°/s | 120 arcsec @1.0°/s | 50 arcsec 0.1°/s, roll, 3 sigma +2
- Envelope (L×W×H)
- Φ64, Height: 98±2 datasheet p.2 <Φ64, Height: 98±2 envelope size
- Update rate
- 10 Hz datasheet p.1 10 Hz min · ≥10Hz
- Max tracking rate
- 3 °/s 3°/s: Trackable · datasheet p.2 3 °/s Trackable
- Sun exclusion angle
- 35 ° Sun · datasheet p.1 35 ° min · Sun: better than 35°
- Field of view
- 80 ° cone from the top of the baffle · datasheet p.13
- Lost-in-space acquisition time
- 2 s Max · datasheet p.1 2 s max · acquisition rate, max. ≤2s | 5 s max · start-up time, better than 5s
- Supply voltage
- 5 V Nominal · datasheet p.6 5.4 V Safe Operating (max) | 4.8 V Safe Operating (min) | 4.8 V min | 5.4 V max +3
- Power consumption
- 1 W Long Term · datasheet p.6 1 W Operating State | 1 W operating state, 1±0.2 W per device
- Data interface
- RS-422 datasheet p.1 RS-422 RS422 | RS-422
- Operating temperature
- 40 °C Max · datasheet p.4 -30 °C Min | -30 °C min | 40 °C max | -40–40 °C as published, mode unspecified +2
- Radiation tolerance (TID)
- 30 krad as published, mode unspecified · vendor page (catalogue a
- Design lifetime
- 3 years @500km Orbit · datasheet p.1 3 years 500km Orbit | 5 years as published, mode unspecified
- Configuration
- single unit datasheet p.3
- Connector
- J70A-2F2-037-431-TH datasheet p.7
- Survival temperature
- 40 °C Max · datasheet p.4 -30 °C Min | -30 °C min | 40 °C max | -30–40 °C storage temperature range
- Baffle
- integrated inner surface of the baffle is ultra black coating · datasheet p.5
- Earth exclusion angle
- 25 ° min · Earth: better than 25° · datasheet p.2
- Time-sync (PPS) input
- yes PPS input; SYNC pulse · datasheet p.12
- Additional mass (option)
- 10 g delta · datasheet p.2
- Additional power (option)
- 0.2 W delta, Long Term · datasheet p.6 0.2 W delta, Operating State
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier17 lines, in the manufacturer's own wording
- Dimensions (Sensor+Baffle)
- 33x33x98 mm3
- Mass (Sensor+Baffle)
- 95 g
- Optical design (Lens)
- Refractive
- Vibration (FM)
- sine 13 g, random 12 grms
- Vibration (Qualification)
- sine 16 g, random 18 grms
- Working temperature
- -40 to 40 C
- Radiation resistance
- 30 Krad [Si]
- Field of view
- 15x18 deg [effective]
- Update rate
- 10 Hz
- Dynamic performance
- 3 deg/s
- Sensitivity
- 5.8 Mv, Go.Ref star
- Exclusive angle (Sun)
- < 35 deg
- Exclusive angle (Earth)
- < 25 deg
- Data interface
- RS422/CAN
- Power consumption
- 1 W
- Supply voltage
- 5 V
- Design life
- 5 years
About
The PST3S-H4 Star Tracker is a compact autonomous attitude-sensing instrument (sensor+baffle, 33x33x98 mm3, 95g) built on a refractive optical design. It is engineered for small satellites requiring precise on-orbit attitude determination, providing a 15×18 degree effective field of view, 10 Hz update rate, and dynamic tracking up to 3 deg/s while detecting reference stars down to 5.8 Mv (Go.Ref star). It communicates via RS422/CAN, operates from a 5V supply consuming only 1W, and is rated for a 5-year lifetime. It withstands a working temperature range of -40C to 40C, radiation exposure up to 30 Krad [Si], and vibration loads of 13g sine/12 grms random (FM) or 16g sine/18 grms random (qualification), with sun/earth exclusion angles under 35/25 degrees, suiting low-power, radiation-tolerant satellite attitude control applications.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.